omapfb: add support for the Amstrad Delta LCD
authorJonathan McDowell <noodles@earth.li>
Tue, 22 Sep 2009 23:46:44 +0000 (16:46 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 23 Sep 2009 14:39:48 +0000 (07:39 -0700)
This is an updated version of the LCD driver for the Amstrad Delta to take
into account the recent changes to the omapfb infrastructure.  The Delta
features a 480x320 12 bit DSTN panel.

Signed-off-by: Jonathan McDowell <noodles@earth.li>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Imre Deak <imre.deak@nokia.com>
Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
drivers/video/omap/Makefile
drivers/video/omap/lcd_ams_delta.c [new file with mode: 0644]

index d86d54a63a65f84de4a7acf08f40aa8b46ec9211..2bf94ad891f1f613a5b3b5e3ab4b965ad343c727 100644 (file)
@@ -15,6 +15,7 @@ objs-$(CONFIG_ARCH_OMAP2)$(CONFIG_FB_OMAP_LCDC_EXTERNAL) += rfbi.o
 objs-y$(CONFIG_FB_OMAP_LCDC_HWA742) += hwa742.o
 objs-y$(CONFIG_FB_OMAP_LCDC_BLIZZARD) += blizzard.o
 
+objs-y$(CONFIG_MACH_AMS_DELTA) += lcd_ams_delta.o
 objs-y$(CONFIG_MACH_OMAP_H4) += lcd_h4.o
 objs-y$(CONFIG_MACH_OMAP_H3) += lcd_h3.o
 objs-y$(CONFIG_MACH_OMAP_PALMTE) += lcd_palmte.o
diff --git a/drivers/video/omap/lcd_ams_delta.c b/drivers/video/omap/lcd_ams_delta.c
new file mode 100644 (file)
index 0000000..1f74399
--- /dev/null
@@ -0,0 +1,137 @@
+/*
+ * Based on drivers/video/omap/lcd_inn1510.c
+ *
+ * LCD panel support for the Amstrad E3 (Delta) videophone.
+ *
+ * Copyright (C) 2006 Jonathan McDowell <noodles@earth.li>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/delay.h>
+
+#include <mach/board-ams-delta.h>
+#include <mach/hardware.h>
+#include <mach/omapfb.h>
+
+#define AMS_DELTA_DEFAULT_CONTRAST     112
+
+static int ams_delta_panel_init(struct lcd_panel *panel,
+               struct omapfb_device *fbdev)
+{
+       return 0;
+}
+
+static void ams_delta_panel_cleanup(struct lcd_panel *panel)
+{
+}
+
+static int ams_delta_panel_enable(struct lcd_panel *panel)
+{
+       ams_delta_latch2_write(AMS_DELTA_LATCH2_LCD_NDISP,
+                       AMS_DELTA_LATCH2_LCD_NDISP);
+       ams_delta_latch2_write(AMS_DELTA_LATCH2_LCD_VBLEN,
+                       AMS_DELTA_LATCH2_LCD_VBLEN);
+
+       omap_writeb(1, OMAP_PWL_CLK_ENABLE);
+       omap_writeb(AMS_DELTA_DEFAULT_CONTRAST, OMAP_PWL_ENABLE);
+
+       return 0;
+}
+
+static void ams_delta_panel_disable(struct lcd_panel *panel)
+{
+       ams_delta_latch2_write(AMS_DELTA_LATCH2_LCD_VBLEN, 0);
+       ams_delta_latch2_write(AMS_DELTA_LATCH2_LCD_NDISP, 0);
+}
+
+static unsigned long ams_delta_panel_get_caps(struct lcd_panel *panel)
+{
+       return 0;
+}
+
+static struct lcd_panel ams_delta_panel = {
+       .name           = "ams-delta",
+       .config         = 0,
+
+       .bpp            = 12,
+       .data_lines     = 16,
+       .x_res          = 480,
+       .y_res          = 320,
+       .pixel_clock    = 4687,
+       .hsw            = 3,
+       .hfp            = 1,
+       .hbp            = 1,
+       .vsw            = 1,
+       .vfp            = 0,
+       .vbp            = 0,
+       .pcd            = 0,
+       .acb            = 37,
+
+       .init           = ams_delta_panel_init,
+       .cleanup        = ams_delta_panel_cleanup,
+       .enable         = ams_delta_panel_enable,
+       .disable        = ams_delta_panel_disable,
+       .get_caps       = ams_delta_panel_get_caps,
+};
+
+static int ams_delta_panel_probe(struct platform_device *pdev)
+{
+       omapfb_register_panel(&ams_delta_panel);
+       return 0;
+}
+
+static int ams_delta_panel_remove(struct platform_device *pdev)
+{
+       return 0;
+}
+
+static int ams_delta_panel_suspend(struct platform_device *pdev,
+               pm_message_t mesg)
+{
+       return 0;
+}
+
+static int ams_delta_panel_resume(struct platform_device *pdev)
+{
+       return 0;
+}
+
+struct platform_driver ams_delta_panel_driver = {
+       .probe          = ams_delta_panel_probe,
+       .remove         = ams_delta_panel_remove,
+       .suspend        = ams_delta_panel_suspend,
+       .resume         = ams_delta_panel_resume,
+       .driver         = {
+               .name   = "lcd_ams_delta",
+               .owner  = THIS_MODULE,
+       },
+};
+
+static int ams_delta_panel_drv_init(void)
+{
+       return platform_driver_register(&ams_delta_panel_driver);
+}
+
+static void ams_delta_panel_drv_cleanup(void)
+{
+       platform_driver_unregister(&ams_delta_panel_driver);
+}
+
+module_init(ams_delta_panel_drv_init);
+module_exit(ams_delta_panel_drv_cleanup);